$.fn.extend({
	insertAtCaret: function(myValue){
	var $t=$(this)[0];
	if (document.selection) {
		this.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
		this.focus();
	}else {
		if ($t.selectionStart || $t.selectionStart == '0') {
			var startPos = $t.selectionStart;
			var endPos = $t.selectionEnd;
			var scrollTop = $t.scrollTop;
			$t.value = $t.value.substring(0, startPos) + myValue + $t.value.substring(endPos, $t.value.length);
			this.focus();
			$t.selectionStart = startPos + myValue.length;
			$t.selectionEnd = startPos + myValue.length;
			$t.scrollTop = scrollTop;
		}else {
			this.value += myValue;
			this.focus();
		}
	}
}
});